Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 18 of 18 for “"Single-photon detector"”.
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Multi-element superconducting nanowire single photon detectors
Single-photon-detector arrays can provide unparalleled performance and detailed information in applications that require precise timing and single photon sensitivity. Such arrays have been demonstrated using a number of single-photon-detector technologies, but the high performance of …
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Superconducting nanowire single-photon detectors on aluminum nitride photonic integrated circuits
With recent advances in integrated single-photon sources and quantum memories, onchip integration of high-performance single-photon detectors becomes increasingly important. The superconducting nanowire single-photon detector (SNSPD) is the leading single-photon counting technology for quantum …
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Microwave engineering in superconducting nanowires for single-photon detection
Detecting light at the single-photon level plays a crucial role in photonic quantum information processing, deep-space optical communication, astronomical observation, and biological and chemical sensing. With their exceptional performance, superconducting nanowire single-photon detectors (SNSPDs) …
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Superconducting nanowire single-photon detectors : new detector architectures and integration with photonic chips
Superconducting nanowire single-photon detectors (SNSPDs) are a promising technology for long-distance optical communication and quantum information processing. Recent advances in single-photon generation, storage and detection technologies have spurred interest in integration of these components …
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Superconducting thin film nanoelectronics
… devices such as the superconducting nanowire single-photon detector.
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New opportunities for photon storage and detection: an exploration of a high-efficiency optical quantum memory and the quantum capabilities of the human eye
… develop new ways of manipulating and detecting photons. Here, we discuss our efforts toward developing two separate quantum optics experiments that can provide great insight into the development of quantum devices. We begin by discussing our work to investigate the lower threshold of human …
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Millivolt silicon photonic modulators for cryogenic applications
… computing, high performance computing and single-photon communication systems. As these technologies mature and systems scale, a readout solution for high speed, low power data transfer between the cryogenic environment and room temperature becomes essential. The use of optical links for …
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Development of the Visible Light Photon Counter for Applications in Quantum Information Science
<p>The visible light photon counter (VLPC) is a high quantum efficiency (QE), Si-based, single-photon detector with high gain, low-noise multiplication, low timing jitter, and photon number resolution. While the VLPC has high QE in the visible wavelengths, the QE in the ultraviolet and infrared is …
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Single-photon avalanche photodiodes for quantum communication applications in the near-infrared
… experimental research undertaken on InGaAs-InP single-photon avalanche photodiodes (SPADs) intended for use in near-infrared (NIR) applications, such as light detection and ranging (LIDAR) and quantum key distribution (QKD) systems. Within the work, the effect of the lateral dimensions of the …
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Engineering the optical properties of subwavelength devices and materials
… of these devices. The superconducting nanowire single-photon detector (SNSPD) is one such device that, on the one hand, needs to absorb and detect single telecom-wavelength photons (A = 1.55 pm) with near-perfect efficiency, but on the other hand, has an absorber that is subwavelength in its …
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Optical quantum random number generation: applications of single-photon event timing
… the theory, design, and characterization of two photon-arrival-time quantum random number generators (QRNGs). After the QRNGs were completed, it was realized that their performance was severely limited both by the maximum detection rate of the single-photon detectors used, and the precision at …
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Design of New-generation Quantum Key Distribution Systems for Secure Communication
… general attacks and finite data size, yet its single-photon detector is usually costly and requires low-temperature operation. On the other hand, the Grosshans-Grangier-2002 (GG02) protocol uses the standard coherent detection technique, yet its security is still to be completed under practical …
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Scenario-based uncertainty quantification for deep space optical communications
… Mars distancec), compared to 84 Mbps for a single ground station, with data volumes 8-10 times greater than a single ground station due to high availability and the absence of atmospheric effects. However, the single ground station remains the most economical choice in every scenario. …
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Designing and implementing a readout strategy for superconducting single photon detectors
Introduction: Photon detection is an integral part of experimental physics, high-speed communication, as well as many other high-tech disciplines. In the realm of communication, unmanned spacecraft are travelling extreme distances, and ground stations need more and more sensitive and selective …
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Study of ultranarrow superconducting NbN nanowires and nanowires under strong magnetic field for photon detection
Photon detection is an integral part of experimental physics, high-speed communication, as well as many other high-tech disciplines. In the realm of communication, unmanned spacecraft are travelling extreme distances, and ground stations need more and more sensitive and selective detectors to …
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Photon-Number Resolving by Superconductive Devices
… these fields are due to non-ideal devices: both single photon sources and single photon detectors. In these field of applications, detectors require to be able to resolve the number of photons in a light pulse. Presently state of the art indicates that classical semiconductor light detectors …
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SAW-driven single-photon sources and photon detectors fabricated on an undoped GaAs/AlGaAs quantum well
… interest in quantum information systems based on photonic qubits. Devices able to emit pure single-photon states on demand and detect incoming single photons in the system are fundamental building blocks for the realisation of a quantum photonic scheme. Advances in controlling single carriers have …